Understanding the masses of the c(s)over-bar states in Regge phenomenology

In the framework of Regge phenomenology, the masses of the charmed states c (q) over bar (q = u, d, s) lying on the 1 S-3(1)-like trajectories are estimated. The overall agreement between our estimated masses and the recent predictions given using modified quark models by Matsuki et al., Lakhina et al. and Close et al. is good. The masses of the observed charmed states D-s0(2317), D-sJ(2860) and D-sJ(2690)/D-sJ(2700) can reasonably be reproduced in the picture of these charmed states as simple quark-antiquark configurations. We therefore suggest that D-s0(2317) can be identified with the c (s) over bar (1(3)P(0)) states. The possible assignments of the D-sJ(2860) and D-sJ(2690)/D-sJ(2700) are discussed.